Valve cleaning assembly

Abstract

The present invention is a valve cleaning apparatus and method for transporting a cleaning fluid from a supply tank into the air intake valves of a combustion engine. It comprises housing having a pair of legs and a closed end. The housing has a flow path through the housing. A valve is located collinear with the flowpath. The valve cleaning apparatus also includes tubing, a nozzle and a hook to hang the assembly from the hood of a car.

What is claimed:  
     
       1. A valve cleaning apparatus for transporting a fluid from a supply tank into air intake valves of a combustion engine for cleaning the valves, comprising: 
       a. A portable integral aluminum U-shaped housing having a pair of legs and a closed end, the housing further having a flow path extending from a terminal end of a first leg through the housing to a terminal end of a second leg, the flow path comprising:  
       i. a first leg section extending into the first leg;  
       ii. a second leg section extending into the second leg; and  
       iii. an interconnecting section in the closed end of the housing interconnecting the first leg section and the second leg section;  
       b. a needle valve co-linear with the interconnecting section and extended into the interconnecting section in fluid communication with the fluid path for controlling fluid into the second leg section, and a portion of the needle valve extending from an exterior of the housing;  
       c. a nozzle in fluid communication with the second leg section;  
       d. a length of tubing fluidly connecting the nozzle and the second leg section; and  
       e. a fitting for engaging the housing to allow the valve cleaning apparatus to be in balance when hung from a point above the nozzle.  
     
     
       2. The valve cleaning apparatus of  claim 1 , where the housing further comprises threads at a terminal end of the first leg for attaching a solvent container. 
     
     
       3. The valve cleaning apparatus of  claim 2 , where the tubing is coiled. 
     
     
       4. The valve cleaning apparatus of  claim 3 , where the second leg of the housing further comprises a section of clear glass through which the flow path may be seen from a viewpoint exterior to the housing. 
     
     
       5. A valve cleaning apparatus for transporting a fluid from a supply tank into air intake valves of a combustion engine for cleaning the valves, comprising: 
       a. a portable integral aluminum U-shaped housing having a pair of legs and a closed end, the housing further having a flow path extending from a terminal end of a first leg through the housing to a terminal end of a second leg, the flow path comprising:  
       i. a first leg section extending into the first leg;  
       ii. a second leg section extending into the second leg; and an interconnecting section in the closed end of the housing interconnecting the first leg section and the second leg section;  
       b. a needle valve co-linear with the interconnecting section and extended into the interconnecting section in fluid communication with the fluid path for controlling fluid into the second leg section, and a portion of the needle valve extending from an exterior of the housing;  
       c. a in fluid communication with the second leg section:  
       i. a body defining a central cavity defining a nozzle flow path and having a shoulder with a sealing ring and a tip;  
       ii. an opening drilled into the shoulder of the nozzle at a 90 degree angle to the nozzle flow path;  
       d. a length of tubing fluidly connecting the nozzle and the second leg section; and  
       e. a fitting for engaging the housing to allow the valve cleaning apparatus to be in balance when hung from a point above the nozzle.  
     
     
       6. The valve cleaning apparatus of  claim 5 , where the housing further comprises threads on the first leg for attaching a solvent container. 
     
     
       7. The valve cleaning apparatus of  claim 6 , wherein the nozzle central cavity has a greater diameter at the shoulder than at the tip. 
     
     
       8. The valve cleaning apparatus of  claim 7 , wherein the diameter of the central cavity at the tip is approximately 0.003 inches and the diameter of the central cavity at the shoulder is 0.009 inches. 
     
     
       9. The valve cleaning apparatus of  claim 7 , wherein the nozzle central cavity has one or more sections such that the section near the nozzle tip is the lowest diameter section. 
     
     
       10. The valve cleaning apparatus of  claim 7 , wherein the nozzle further comprises a gripping section adjacent the sealing ring. 
     
     
       11. The valve cleaning apparatus of  claim 7 , wherein the nozzle further comprises a gripping section adjacent the tip. 
     
     
       12. The valve cleaning apparatus of  claim 7 , wherein the nozzle tip further comprises an outer edge adjacent the opening that is cambered. 
     
     
       13. The valve cleaning apparatus of  claim 6 , where the tubing is coiled. 
     
     
       14. The valve cleaning apparatus of  claim 7 , where the second leg of the housing further comprises a section of clear glass through which the flow path may be seen from a viewpoint exterior to the housing.